The young electrical engineer will find just the information he needs: how to fit up a large dynamo when received in parts from the makers; how to prevent the commutator becoming rough in use ...

A dynamo is an electrical generator that produces direct current with the use of a commutator. Dynamos were the first electrical generators capable of delivering power for industry, and the ...

A dynamo (from the Greek word dynamis; meaning power), originally another name for an electrical generator, generally means a generator that produces direct current with the use of a commutator.

It was during the years 1865-1873 that the shunt and series self-excited dynamo, using a ring or drum armature and a commutator of many segments, finally evolved.

In his short biography of William Wallace, William J. Hammer concludes that this machine was constructed with a double-wound Gramme ring, with two commutators and a circular field enclosing the ...

A direct current generator mounted on a wooden display base. Cylindrical cast iron frame with armature having an oil cup and a commutator at one end with brushes fixed to the frame. (Brushes are ...